Preparation of 3-chloromethyl-4-alkyl-nitrobenzene by chloromethylation
申请人:American Cyanamid Company
公开号:US04395577A1
公开(公告)日:1983-07-26
A method for the preparation of 3-chloromethyl derivatives of 4-alkylnitrobenzenes from the corresponding amidomethyl derivatives with phosphorus oxychloride or with phosphorous oxychloride and inert solvents. This process also relates to 3-chloromethyl-4-alkylnitrobenzenes which are useful intermediates for the preparation of certain substituted 2,6-dinitroaniline pre-emergence herbicides.